Essentia Project Artica Platform No Frost 60 cm Appliances 2011 Event Ca Maiano, May 2011 Presenter Piotr Kelm Francesco Nieli 0
Legend and User Interface Legend THR3 Interface (SQG_CL_32) MID Indesit Interface (SQG_CL_29) MID H/A Interface (SQG_CL_30) Entry Interface (SQG_CL_28)
Functions 2
Functions ECO or I Care Function: An optimal temperature for food storage can be set which also gives energy savings. When this function is selected the appliance will cycle in order to achieve this reduced energy consumption. ICE PARTY function: Used, for example, for rapidly chilling a bottle of wine. To prevent the bottle freezing and breaking, two signals (one acoustic, one visual) will remind you that a bottle has been placed in the freezer and that the optimal temperature has been reached. HOLIDAY function: Manages the refrigerator and freezer compartments separately. The freezer continues to operate normally while the fridge operates at a temperature of around +12 C which means the fridge door can be kept closed, preventing the formation of unpleasant odours whilst reducing energy consumption. 3
Functions SUPER COOL Function: Rapidly chills food placed in the fridge without exposing food already stored to thermal excursion. When this function is selected, the refrigerator starts a special procedure that delivers cooling to the fridge compartment, lowering the temperature to around +2 C. SUPER FREEZE function: Freezes food rapidly, enabling longer storage. There are two options: 24 hours: in this case the symbol remains steadily lit; 48 hours: in this case the symbol flashes for the first 24 hours and changes to steadily lit for the last 24 hours. In the first case, the appliance may end the function on completion of the 24 hours. 4
Functioning logic 5
Artica FULL & Artica Entry No Frost Appliances Artica FULL No Frost Appliance I2C connection Artica Entry No Frost Appliance 6
Artica FULL & Artica Entry - Normal Functioning Description This function is active when no other function is activated from the user interface. The fridge air probe determines when to start and stop chilling the fridge compartment, based on the temperature setting made by the user with the user interface. When the fridge compartment needs to be cooled, the compressor is activated, the fan switched on and the damper opened. The freezer air probe determines when to start and stop chilling the freezer compartment, based on the temperature setting made with the control panel. When the freezer compartment needs to be cooled, the compressor is activated and the fan switched on. The damper remains closed. When the fridge door is opened during a cooling demand from the fridge compartment, the damper is closed and the freezer fan is switched off if there is no cooling demand from the freezer. When the fridge door is closed, the damper is re-opened and the fan is switched back on again. In the event of a black-out, when the power supply is restored, normal appliance functioning is also restored. 7
Artica FULL & Artica Entry - ECO Function Description The function is activated and disabled by pressing the relative button or turning both knobs to the corresponding symbol on the user interface. When the ECO function is active, the temperatures of +5 C in the fridge compartment and -18 C in the freezer compartment are automatically set. The fridge air probe determines when to start and stop chilling the fridge compartment based on the temperature setting on the display board. When the fridge compartment needs to be cooled, the compressor is activated, the fan switched on and the damper opened. At the end of every cooling demand from the fridge compartment, the freezer compartment is always cooled by closure of the damper with the freezer fan running for a fixed time, which can vary depending on the setting File, from a minimum of 5min to a maximum of 33min. The freezer air probe determines when to start and stop chilling the freezer compartment based on the temperature readings. When the freezer compartment needs to be cooled, the compressor is activated and the freezer fan switched on In the event of a black-out, when the power supply is restored, appliance functioning in ECO mode is also restored. 8
Artica FULL & Artica Entry - Holiday function Description The function is activated and disabled by pressing the button on the user interface or turning the knob to the corresponding symbol. The fridge air probe determines when to start and stop chilling the fridge compartment at warmer temperatures than for normal function (+12 C). The freezer air probe determines when to start and stop chilling the freezer compartment with the temperature threshold set at -18 C. In the event of a black-out, when the power supply is restored, this function is also restored. 9
Artica FULL & Artica Entry - Super Cool function Description The function is activated by pressing the relative button and can be exited manually by pressing the button again or automatically: after a maximum set timeout of 12 hours. after three compressor ON cycles at a steady set temperature of +2 C. The fridge air probe determines when to start and stop chilling the fridge compartment at lower temperatures than for normal function (+2 C). The freezer air probe determines when to start and stop chilling the freezer compartment based on the temperature setting made by the user. At the end of the function, the appliance returns to normal functioning. In the event of a black-out, when the power supply is restored, this function is also restored. 10
Artica FULL & Artica Entry - Super Freeze 24h function Description The function is activated by pressing the relative button on the control panel and can be disabled: manually by pressing the button again or automatically after 24 hours max. When the function is activated, the appliance runs a defrost cycle if and only if the appliance has accumulated at least 3 hours of compressor ON since the last defrost cycle performed. The fridge air probe determines when to start and stop chilling the fridge compartment, based on the temperature setting made by the user. The freezer compartment is cooled continuously for 24 hours In the event of a black-out, when the power supply is restored, th Super Freeze function is also restored. Important: Super Freeze 48 hours is not available. The appliance will complete the function automatically based on time and NEVER due to reaching a set temperature as was the case with previous platforms. 11
Artica FULL & Artica Entry - Ice Party function Description The function is activated by pressing the relative button on the user interface and can be disabled manually by pressing the button again or automatically after 30 minutes. The fridge air probe determines when to start and stop chilling the fridge compartment, based on the temperature setting made using the control panel. The freezer compartment chills continuously (compressor ON) for 30 minutes, activating the compressor and the freezer fan. After this time, an acoustic signal sounds to remind the user to remove the bottle. In the event of a black-out, when the power supply is restored, the alarm is activated, prompting removal of the bottle. 12
Artica FULL & Artica Entry - A1 alarm A2 threshold T1 = 2 1/2 Hours A1 threshold Check threshold T2 = 24 Hours T3 = 120 Hours Description The A1 alarm is only displayed if there is no Pre-Fault or Fault. The alarm is activated when the temperature measured by the freezer air probe is such that food might be damaged. In this case, it is advisable to use food immediately or cook it and then refreeze it. When an alarm condition occurs, it is indicated on the user interface with the message A1 or the simultaneous flashing of the Super Cool & Super Freeze LEDs, in addition to an acoustic signal. The buzzer can be muted by opening and closing the refrigerator door. The alarm can be reset by switching the appliance off using the control panel. Fridge compartment function remains the same as during normal functioning. The freezer compartment functions at temperatures that will not refreeze the food stored inside (0 C). Defrost cycles are forced every 2 hours. NB: The thresholds are the same as the Cooling 2005/2008 platform. Always avoid unplugging the appliance: switch off using the U.I. 13
Artica FULL & Artica Entry - A2 alarm A2 threshold A1 threshold T1 = 2 1/2 Hours T2 = 24 Hours Check threshold T3 = 120 Hours Description The A2 alarm is only displayed if there is no Pre-Fault or Fault. The alarm is activated when the temperature measured by the freezer air probe is so high or has remained above the safety threshold for so long that all the food stored in the freezer compartment needs to be thrown away. The alarm condition is indicated on the user interface with the message A2 or the simultaneous flashing of the Super Cool, Power Supply and Super Freeze LEDs, in addition to an acoustic signal. The buzzer can be muted by opening and closing the refrigerator door. To reset the alarm, switch the appliance off. Fridge compartment function remains the same as during normal functioning. The freezer compartment attempts to reach a temperature of 12 C in order to avoid unpleasant odours inside the freezer compartment. Defrost cycles are forced every 2 hours. NB: The thresholds are the same as the Cooling 2005/2008 platform. Always avoid unplugging the appliance: switch off using the U.I. 14
Artica FULL & Artica Entry - Defrost cycle ON (C) (B) (E) OFF (A) (D) Heating elements Freezer fan Compressor Damper Start of the defrost cycle is dependent on: Duration of last defrost Time of fridge door opening (every 5 cumulative minutes of door open time reduces the start of the next defrost cycle by one hour) Compressor ON time (10 / 12 hours) Actual time between 2 defrost cycles (minimum 10 hours / maximum 48 hours) Defrost cycles activated by particular circumstances In the event of Alarms A1 and A2, a defrost cycle is carried out every 2 hours. If the Door Open Alarm remains active for more than 30 minutes, a defrost cycle will be performed every 2 hours until the door is closed (Alarm Reset) In the event of activation of the Super Freeze Function, if at least 3 cumulative hours of Compressor ON have passed since the last defrost cycle. If the Fridge Air Probe registers a value above +14.5 C for 30 consecutive minutes (this function is not available when the Holiday Function is active). 15
Artica FULL & Artica Entry - Defrost cycle ON (B) (C) (E) OFF (A) (D) Heating elements Freezer fan Compressor Damper Description (A) - All loads are disabled and the defrost heating elements are switched on. (B) - The heating elements switch off when the freezer evaporator probe reaches +17 C or after 50 minutes (Defrost Time Out). (C) - As soon as the heating elements switch off, the freezer fan activates for 5 seconds in order to deliver warm air to the cold air inlet pipe from the freezer compartment into the fridge compartment. Everything else remains switched off during this time. (D) - All the loads remain disabled for around 12 minutes to allow the water to flow into the compressor drawer. (E) - The compressor is switched on to cool the evaporator that was heated up during defrosting until a temperature of -18 C is reached. 16
Artica FULL & Artica Entry - Compatibility of Functions SET FUNCTION FUNCTION TO BE SET ECO / I CARE SUPER FREEZE SUPER COOL HOLIDAY ICE PARTY / BOTTLE CHILL ECO / I CARE - ECO / I CARE can be activated but will start on completion of SUPER FREEZE ECO / I CARE can be activated but will start on completion of SUPER COOL Disables Holiday ECO / I CARE can be activated but will start on completion of ICE PARTY / BOTTLE CHILL SUPER FREEZE SF takes precedence. At the end, ECO is restored. - OK CANNOT BE SET SF can be activated but will start on completion of ICE PARTY / BOTTLE CHILL SUPER COOL SC takes precedence. At the end, ECO is restored. OK - CANNOT BE SET SC can be activated but will start on completion of ICE PARTY / BOTTLE CHILL HOLIDAY Disables ECO / I CARE HOLIDAY can be activated but will start on completion of SF HOLIDAY can be activated but will start on completion of SC - HOLIDAY takes precedence and ends ICE PARTY / BOTTLE CHILL (indicated on the display/acoustic signal) ICE PARTY / BOTTLE CHILL At the end, ECO is restored. OK OK CANNOT BE SET - CHANGE TEMP. Disables ECO OK (only Fridge Temp. can be changed) OK (only Freezer Temp. can be changed) Disables Holiday OK 17
THR3 THR3 NF No Frost Appliance (Electronic thermostat) 18
THR3 Normal Functioning Description The fridge damper is mechanical. The freezer air probe determines when the compressor comes on and off in order to stop chilling the freezer compartment depending on the setting of the knob on the control panel. Fridge door: Management of fridge door alarm when it is left open for more than 2 minutes The alarm is signalled visually by the flashing fridge light. The alarm is reset when the door is closed. Once the door has been open for 30 minutes, a defrost cycle is activated every 2 hours. 19
THR3 - Defrost cycle On (A) (C) (D) (E) (G) Off (B) (F) Heating elements Freezer fan Compressor Start of the defrost cycle depends on: Duration of last defrost Time of fridge door opening (every 5 cumulative minutes reduces the start of the next defrost cycle by one hour) Total compressor ON time since last defrost (10 / 12 hours) Actual time between 2 defrost cycles (minimum 10 hours maximum 48 hours) 20
THR3 - Defrost cycle On (A) (C) (D) (E) (G) Off (B) (F) Heating elements Freezer fan Compressor Defrost Cycle: (A) - Start of defrost, the fan runs for 4 minutes (B) - All the loads are disabled (C) - The defrost heating element switches on. (D) - The heating element switches off when the freezer evaporator probe reaches the preset value of 17 C or the maximum set time of 70 minutes has elapsed. (E) - When the heating element switches off the fan runs for 20 seconds. (F) - All the loads remain disabled for around 10 minutes to allow the water to flow into the compressor drawer. (G) - The compressor is switched on to cool the coil that has heated up during defrosting until a temperature of -18 C is reached. 21
Components 22
Components 1 3 2 Temperature Probes: The NTC Temperature Probes have the same settings used in the Cooling platform 2005/2008. There are 3: 1. Refrigerator air probe: Which measures the temperature inside the refrigerator compartment and relays to the main board any cooling demand and/or the fact that the thermostat temperature has been reached. 2. Freezer air probe: Which measures the temperature inside the freezer compartment and relays to the main board any cooling demand and/or the fact that the thermostat temperature has been reached. 3. Evaporator probe: manages the end of the defrost cycle by detecting when the set temperature of +17 C is reached. IMPORTANT: The ohm values for checking that the probes are in good working order are the same used until now since the probes remain unchanged. 23
Components Temperatures (degrees C) Impedance (Ohms) Temperature Probes: As in Platform 2005/2008, in the event of malfunction (short circuit or open circuit) of one or more probes, the appliance will start cycling, using internal compressor ON/OFF tables based on the choices made by the user with the user interface. IMPORTANT: The ohm values for checking that the probes are in good working order are the same used until now since the probes remain unchanged. 24
Components Heating elements: Defrosting is performed by the defrost heating elements. One element covers both sides of the freezer evaporator with an extension designed to avoid use of the foam-protected drip tray heating element used on the previous platform, and a second element surrounds the foam-protected air return pipeline. The evaporator heating element used in threedrawer appliances and that used in four-drawer appliances differ in length, nonetheless they have the same reference value for checking correct operation (see table below). Electrical characteristics: Operating voltage.: 220-240 Volts Impedance.: approx. 302.5 Ohm At 220 Volts, it has a power rating of: approx. 160 Watts At 240 Volts, it has a power rating of: approx. 190 Watts 25
Components LED indicators: There are 2 connected in series, so when one LED is damaged, the other will not switch on and, as a result, both will need to be replaced. In the event of malfunction, they must both be replaced (they cannot be tested using a multimeter) Thermal fuse: Two thermal fuses (one for each phase of impedance) provide additional protection during automatic defrosting. N.B.: Opens when a temperature of 72 C is reached (Cannot be reset) 26
Components Freezer Fan (radial type): The radial fan has the capacity to extract cooled air from the front (green arrow) and to direct it radially, therefore 90 with respect to the motor arrangement. The freezer fan switches on along with the compressor every time there is a cooling demand from the fridge or freezer compartment, circulating warmer air in order to cool it through contact with the evaporator coil. It is located at the top of the freezer compartment and operates at one speed only. It runs on 12V constant voltage. The freezer fan starts running as soon as the compressor switches on. 27
Components Refrigerator Compartment Multiflow: The fridge multiflow ensures correct air distribution throughout the fridge compartment by means of variable diameter vent outlets. Depending on the height of the fridge compartment, there are various levels of cooling: height 1750mm: - Electronic 3 levels - Mechanical 2 levels height 1875mm: - Electronic 4 levels - Mechanical 3 levels height 2000mm: - Electronic 5 levels - Mechanical 4 levels Cold air exiting Warm air returning 28
Components Freezer air outlet vents Freezer Compartment Multiflow: The freezer multiflow also has the task of distributing air, in this case throughout the freezer compartment. Freezer air outlet vents Air return vents Freezer multiflow There are different versions of freezer multiflows: 3-drawer electronic appliances: 2 open levels (4 open vents) 3-drawer mechanical appliances: 3 open levels (6 open vents) 4-drawer electronic and mechanical appliances: 4 open levels (8 open vents) Cold air exiting Warm air returning In all cases there are two vents at the bottom for drawing in air and channeling it to the evaporator coil. 29
Components Fridge inlet duct Fridge return duct External Air Flow (Fridge Compartment Cooling): Cold air is forced by the radial fan through the smallest channel (blue arrow) passing through the damper, and is distributed through the fridge compartment by the multiflow. Warm air is forced out of the fridge compartment through the longer channel to the bottom of the freezer compartment, where it comes into contact with the evaporator coil and is cooled once again. 30
Components Fridge inlet duct Fan unit Fridge return duct Evaporator coil Freezer multiflow 31
Components Stepper Damper Although the damper is of the stepper type, it is used like a standard On/Off damper; fully closed or fully open (90 ). It runs on 12V constant voltage and opens to let air cooled by the freezer evaporator pass; this air is then forced back into the fridge compartment by the freezer cooling fan each time there is a cooling demand from the fridge compartment. Important: The damper is managed with a single replacement part (KIT) together with the polystyrene of the fridge multiflow NOT TO BE DISMANTLED!!! The damper opens and closes immediately upon a cooling demand from the fridge compartment. The only exception is if the ECO (I CARE) function is selected and the appliance has a Full or Entry board: in this case the damper opens after approx. 35 seconds. Closure, on the other hand, is immediate. 32
Components Evaporator Cover in Polystyrene The polystyrene cover is designed to channel / force air through the evaporator structure in order to guarantee cooling of air. It is also very important during defrosting for insulating warm air in the evaporator area. It also secures the drip tray in place. IMPORTANT: 1.NEVER pull the polystyrene cover if there is ice attached AS IT MAY BREAK 2.If the polystyrene cover is removed, always ensure it is fitted properly back in place afterwards to guarantee correct appliance operation 33
Components Compressor: When the appliance is switched on for the first time, the compressor only starts after 8 minutes. Between one start-up and the next one there is a minimum safety time of 8 minutes. Situations in which the compressor remains off even in the presence of a cooling demand: 1. When the electronic protection device is in operation 2. When the electric protection device (Clixon) is activated 3. After the end of defrosting 4. After completion of the "Super Freeze" function 34
Components Components - VERY IMPORTANT: Electronic Appliances: In these appliances, the damper and the multiflow polystyrene are managed with a single KIT NOT TO BE DISMANTLED in order to avoid any leakage of air remaining after reassembly, which might result in poor appliance operation. Electromechanical Appliances: In these appliances, the damper, the multiflow polystyrene, the damper knob and the plastic cover are managed with a single KIT NOT TO BE DISMANTLED in order to avoid any leakage of air remaining after reassembly, which might result in poor appliance operation. 35
Wiring Diagrams FULL Wiring Diagram (SQG_CL_312) Entry Wiring Diagram (SQG_CL_310) THR3 Wiring Diagram (SQG_CL_311) Internal Connection Wiring Diagram 36
Serviceability 37
Artica FULL Demo Mode Activating Demo Mode: Start with the appliance off. To activate the function, press the buttons ECO/I CARE and HOLIDAY simultaneously for 6 seconds. de and On will appear on the display together with an acoustic signal confirming activation. Disabling Demo Mode: Switch the product off. Press the buttons ECO/I CARE and HOLIDAY simultaneously for 6 seconds. de and OFF will appear on the display. N.B.: If the appliance is unplugged or there is a black-out, the function is automatically switched off. 38
Artica FULL - Autotest Procedure Autotest Activation: The function can be activated only with the appliance turned OFF by pressing the buttons HOLIDAY, SUPER COOL and SUPER FREEZE simultaneously for 6 seconds. Autotest Deactivation: The appliance can exit the autotest procedure in 3 different ways: 1.After 255 seconds (duration of procedure) 2.By switching on the appliance (using On/Off button) 3.By unplugging the appliance from the mains socket 39
Artica Entry - Autotest Procedure Autotest: activation The function is activated by turning both knobs to OFF and long-pressing (for 6 seconds) the Super Freeze button. Autotest Deactivation: The appliance can exit the autotest procedure in 3 different ways: 1.After 255 seconds (duration of procedure) 2.By switching on the appliance (using the Freezer On/Off knob) 3.Byunplugging the appliance from the mains socket N.B.: The DEMO function is not available in models with this control panel. 40
Artica FULL & Artica Entry - Autotest Procedure Autotest procedure (Full and Entry board) Any Last Fault or Non Critical Fault will be shown on the display for the first 20 seconds after Autotest activation, after which the cycle starts as follows: Step Duration Action Light Notes 1 5 seconds Pause OFF 2 1 second Probe check OFF If the probes have not failed, skip to step 3. If the probes have failed, skip to step 6 3 4 seconds Pause OFF 4 125 seconds FZ fan ON Heating element ON (*) Damper open OFF 5 120 seconds FZ fan ON Heating element ON (*) Damper closed OFF Skip to step 8 6 125 seconds FZ fan ON Heating element ON (*) Damper open Flashing 7 120 seconds FZ fan ON Heating element ON (*) Damper closed Flashing 8 Autotest closes (*) Important: Bear in mind that the heating elements are connected in parallel so, in the event only one of them is interrupted, this Fault will not be detected and the Autotest procedure will finish without signalling any problems.com 41
Artica FULL & Artica Entry Critical and Non-critical Faults Critical Faults: These are faults which prevent the appliance from functioning because they involve a major functional component, for example: Main board, setting file, solenoid valve. They are automatically displayed by the appliance: Critical faults are displayed ONLY IF THE MAIN BOARD DETECTS A SIMULTANEOUS TEMPERATURE ALARM ( A1 OR A2 ) Non-critical Faults: These are faults which, even when present, do not compromise the normal functioning of the appliance, for example: Fridge fan, multiflow heating element. THEY ARE NOT AUTOMATICALLY DISPLAYED BY THE APPLIANCE since they do not pose any hazard or risk compromising appliance operation. They are displayed for 20 seconds when the autotest procedure is activated. 42
Artica FULL & Artica Entry Fault & Last Fault Management Fault : If CRITICAL, it is automatically displayed and the buzzer sounds. To mute the buzzer, simply open and shut the fridge door. To RESET THE FAULT, switch the appliance off at the control panel or unplug it from the mains power supply. If NON-CRITICAL, it is displayed only for the first 20 seconds when the Autotest procedure is started. It is only wiped from the memory once the problem has been solved and the Autotest procedure re-started and completed. Last Fault: Displayed for the first 20 seconds when the Autotest procedure is started. To wipe Last Fault from memory, simply complete the current autotest procedure. 43
Artica FULL & Artica Entry Fault & Last Fault Management Important notes. Critical Faults are displayed only if an alarm condition is also present at the same time ( A1 or A2 ). In a Pre-Fault condition, functions selected using the user interface are not activated and the alarms A1 and A2 are not displayed until the Fault is confirmed or rejected. Faults take precedence over Alarms A1 and A2 The A1 or A2 alarm is displayed only in the absence of a Pre-Fault or Fault. During display of a Critical Fault, all function previously chosen by the user are cancelled and the freezer compartment starts cycling in an attempt to function at 0 C or -12 C, depending on the alarm condition present along with the Fault. 44
THR3 - Autotest cycle Autotest Activation: The function is activated by turning the knob on the control panel very quickly from OFF to maximum then back to OFF Autotest Deactivation: The appliance can exit the autotest procedure in 3 different ways: 1.After 255 seconds (duration of procedure) 2.By switching on the appliance (using On/Off button) 3.Byunplugging the appliance from the mains socket NB: The DEMO function is not available in models with this control panel. 45
THR3 - Autotest procedure Autotest sequence for THR3 For 10 seconds, activation of FZ fan, defrost heating element and fridge light. All loads off for 3 seconds. Probe check If one of the two probes has a fault, the fridge light flashes for 5 seconds. (1 second ON and 1 second OFF) If everything is OK and there are no probe faults, the fridge light remains ON for 5 seconds. All loads off for 3 seconds. Defrost heating element check If there is a defrost heating element fault, the fridge light flashes for 5 seconds (1 second ON and 1 seconds OFF). If everything is OK and there is no probe heating element fault, the fridge light remains ON for 5 seconds. All loads off for 3 seconds. Electronic board check If there is an electronic board fault, the fridge light flashes for 5 seconds (1 second ON and 1 seconds OFF). If everything is OK and there is no electronic board fault, the fridge light remains ON for 5 seconds. All loads off for 3 seconds. Pause for 7 seconds. FZ air probe check If there is a fault relating to the FZ air probe, the fridge light flashes for 5 seconds. (1 second ON and 1 second OFF) If everything is OK and there is no FZ air probe fault, the fridge light remains ON for 5 seconds. All loads off for 3 seconds. FZ evaporator probe check If there is a fault relating to the FZ evaporator, the fridge light flashes for 5 seconds. (1 second ON and 1 second OFF) If everything is OK and there is no FZ evaporator fault, the fridge light remains ON for 5 seconds. All loads off for 3 seconds. Activation of FZ fan and defrost heating element for 217 seconds. 46
Demo Mode / Autotest / Autotest Sequence / Fault Table THR3 Interface (SQG_CL_32) MID Indesit Interface (SQG_CL_29) MID H/A Interface (SQG_CL_30) Entry Interface (SQG_CL_28) Artica Fault Table (SQG_CL_31) 47
Serviceability For main board programming in the ARTICA platform, follow one of the three methods: 1. Using the handheld/ffa (with MemWriter) 2. Using a PC (in UK) 3. Using a Smart Reader plus the Smart Card for the rest of the world (described in SQG_WM_25) Whichever method is used, refer to documentation on the relative technology Upgrading Low-End Adapter (TB001328) 48
Serviceability - New programming connector In appliances with FULL (HIGH) board: 1.Remove the cover from the board of the programming connector 2.Insert the LOW END 2007 adapter with the new wiring (C00275571) 3.Insert the Smart Reader or Hardware Key in the LOW END 2007 adapter 4.Proceed as described at Programming procedure 49
Serviceability - New programming connector In appliances with Entry board: 1.Connect the LOW END 2007 adapter (with the new C00275571 wiring) to the connector located in the compressor area 2.Insert the Smart Reader or Hardware Key in the modified LOW END 2007 adapter 3.Proceed as described at Programming procedure N.B.: THR3 boards are not programmable. 50
Disassembly 51
Assembly and Disassembly Continue removal of fridge multiflow 1. Remove the plugs covering the screws 2. Remove the 6 screws fixing the multiflow 3. Move the multiflow forward slightly and disconnect the damper connector 4. Pull the multiflow at the front For the damper: 5. Separate the polystyrene from the plastic cover, taking great care not to break it NB: The damper must be replaced together with the polystyrene so that during reassembly no surfaces are left inadequately sealed, allowing leakage of air resulting in poor appliance performance. 52
Assembly and Disassembly Disassembly of fridge air return vent: 1.Insert a flat blade screwdriver in the top aperture of the vent 2.Pull the vent towards you Disassembly of NTC probe housing: To remove the NTC probe housing, exert pressure at the side and dislodge it from its seat by pulling it towards you. If this proves unsuccessful, insert a flat blade screwdriver and prise open the catches to release the housing from its seat (take care not to scratch the appliance internally or break the housing). 53
Assembly and Disassembly Disassembly of freezer multiflow 1.Remove the freezer compartment drawers 2.Unscrew the 6 fixing screws on the multiflow (some models feature 8 screws, the additional 2 identified in the photo with yellow circles) 3.Pull the multiflow gently at the bottom to remove it 4.Open the connectors cover by pressing the fixing clips 5.Release the 2-wire connector from its seat (which is that of the freezer fan) TAKE CARE to disconnect the fan connector before removing it completely. 2 3 4 5 54
Assembly and Disassembly 1 2 Disassembly of freezer evaporator: 1.Remove the polystyrene cover by pulling it gently at the sides (as shown in the photo) 2.Once released from its seat, remove it completely 3.Unscrew the 2 screws fixing the evaporator 3 Important: NEVER pull the polystyrene cover if there is ice attached AS IT MAY BREAK 55
Assembly and Disassembly 2 Disassembly of freezer fan: 1.Disassemble the freezer multiflow 2.Using a screwdriver, remove the 5 screws fixing the freezer fan surround 3.Remove the surround (the fan is fixed to the surround) 4.Using a screwdriver, remove the 4 screws fixing the freezer fan to the surround 5.Remove the freezer fan 3 4 5 56